// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
    Resolving with a resolved Promise instance whose `then` method has been
    overridden from within the executor function
es6id: 25.4.3.1
info: |
    [...]
    8. Let resolvingFunctions be CreateResolvingFunctions(promise).
    9. Let completion be Call(executor, undefined,
       «resolvingFunctions.[[Resolve]], resolvingFunctions.[[Reject]]»).

    25.4.1.3.2 Promise Resolve Functions
    [...]
    8. Let then be Get(resolution, "then").
    9. If then is an abrupt completion, then
       [...]
    10. Let thenAction be then.[[value]].
    11. If IsCallable(thenAction) is false, then
        [...]
    12. Perform EnqueueJob ("PromiseJobs", PromiseResolveThenableJob,
        «promise, resolution, thenAction»)
flags: [async]
---*/

function Test() {
    var returnValue = null;
    var value = {};
    var lateCallCount = 0;
    var thenable = new Promise(function(resolve) {
      resolve();
    });

    thenable.then = function(resolve) {
      resolve(value);
    };

    var promise = new Promise(function(resolve) {
      returnValue = resolve(thenable);
    });

    assert.sameValue(returnValue, undefined, '"resolve" return value');

    thenable.then = function() {
      lateCallCount += 1;
    };

    promise.then(function(val) {
      if (val !== value) {
        $DONE('The promise should be fulfilled with the provided value.');
        return;
      }

      if (lateCallCount > 0) {
        $DONE('The `then` method should be executed synchronously.');
      }

      $DONE();
    }, function() {
      $DONE('The promise should not be rejected.');
    });
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
